30 Guns & Ammo?

I was looking on MidwayUSA and I stumbled upon this round - 30 Guns & Ammo. I tried searching on the internet but could not find anything about this round. Does anyone have any information? I'm just curious what this round is.

Shooters and hunters like horsepower. I am as or more guilty than the next guy, but in my “maturity,” I have begun to see the reality of it all. Perhaps the best example of what almost every hunter does not want would be the two really big, fast, flat, high-energy modern super-magnums. These are the .300 and .338 Remington Ultra Mags. Now before you think I am picking on Remington, I am not. I detest these cartridges and can do so on the most honest grounds . . . I designed them.

Before Remington adopted them as factory rounds they were the .30 G&A and .33 G&A, invented, designed and perfected by yours truly.